The question asks which expression is equivalent to $5 + (-3)$.

Step-by-step solution:

1. Simplify $5 + (-3)$: Adding a negative number is the same as subtraction. Hence,
   $5 + (-3) = 5 - 3.$

2. Match with the provided options: The equivalent expression is $5 - 3$, which matches Option 1.

Final Answer:

The correct choice is $5 - 3$.

Would you like a further explanation of adding negatives or subtraction rules? Here are related questions to explore:

Related Questions:

1. How do you simplify $7 + (-2)$?
2. Why is $a + (-b)$ equivalent to $a - b$?
3. What happens when you subtract a negative number, like $4 - (-2)$?
4. Can $0 + (-5)$ also be simplified as subtraction?
5. If the order of addition changes, does $5 + (-3)$ equal $(-3) + 5$?

Tip:

Adding a negative number is equivalent to subtracting the absolute value of that number!